Patent US4592980A successfully refreshed from Google Patents.
US4592980A
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Photoconductive layer having hydrophilic and hydrophobic moieties
Assignee: Canon Inc
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Filing: 1984-11-29
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Granted: 1986-06-03
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Expires: 2004-11-29
Abstract
Abstract A photosensitive member comprises a monolayer or a multi-layer structure film, the film being constituted of one or more film forming molecules, the film forming molecule having a hydrophilic moiety and a hydrophobic moiety in the molecule and having photosensitivity.
Inventors
- 👤 Yoshinori Tomida
- 👤 Yutaka Hirai
- 👤 Masahiro Haruta
- 👤 Yukuo Nishimura
- 👤 Hiroshi Matsuda
- 👤 Takashi Hamamoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 07:01
CPC Classifications
G; G03; G03G; G03G5/00; G03G5/02; G03G5/04; G03G5/05
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
63 words
A photoconductive member which comprises a substrate and at least one monomolecular layer on said substrate, said layer comprising a plurality of film-forming molecules, each molecule exhibiting photoconductivity and having a hydrophilic moiety and a hydrophobic moiety; wherein the layer is formed such that the hydrophilic moiety of each molecule is uniformly aligned and the hydrophobic moiety of each molecule is uniformly aligned.
Claim 2
Dependent Claim
63 words
A photoconductive member which comprises a substrate and at least one monomolecular layer on said substrate, said layer comprising a plurality of film-forming molecules, each molecule exhibiting photoconductivity and having a hydrophilic moiety and a hydrophobic moiety; wherein the layer is formed such that the hydrophilic moiety of each molecule is uniformly aligned and the hydrophobic moiety of each molecule is uniformly aligned.
Claim 3
Dependent Claim
41 words
The member of claim 1 comprising a plurality of said monomolecular layers on said substrate, in which the hydrophilic moieties in adjacent monomolecular layers uniformly oppose each other and the hydrophobic moieties in said adjacent monomolecular layers uniformly oppose each other.
Claim 4
Dependent Claim
28 words
The member of claim 1 comprising a plurality of said monomolecular layers substrate, in which the hydrophobic moieties in each said monomolecular layer are oriented toward the substrate.
Claim 5
Dependent Claim
30 words
The member of claim 1 comprising of plurality of said monomolecular layers on said substrate, in which the hydrophilic moieties in each said monomolecular layer are oriented toward the substrate.
Claim 6
Dependent Claim
23 words
The member of claim 1 comprised of a plurality of said monomolecular layers wherein adjacent layers are formed from different film forming molecules.
Claim 7
Dependent Claim
44 words
The photoconductive member of claim 1, wherein a portion of the molecule exhibiting photoconductivity is selected from the group consisting of porphyrin ring radical, anthracene ring radical, phenanthrene ring radical, diazo radical, polyvinyl radical, polyethynyl radical, hydrazine radical, phthalocyanine radical and the derivatives thereof.
Claim 8
Dependent Claim
20 words
The photoconductive member of claim 1, wherein the monomolecular layers comprise an electric charge-generating layer and an electric charge-transferring layer.
Claim 9
Dependent Claim
11 words
The member of claim 1 in which the substrate is electroconductive.
Claim 10
Dependent Claim
17 words
The member of claim 1 in which the monomolecular layer is formed by a Langmuir-Blodgett layer-forming process.
Claim 11
Dependent Claim
34 words
The member of claim 2 in which the hydrophilic moieties in adjacent layers are aligned in opposition and the hydrophobic moieties on adjacent layers are aligned in opposition by conducting a Langmuir-Blodgett layer-forming process.
Claim 12
Dependent Claim
26 words
The member of claim 3 in which the hydrophobic moieties in each said monomolecular layer are oriented toward the substrate by conducting a Langmuir-Blodgett layer-forming process.
Claim 13
Dependent Claim
26 words
The member of claim 4 in which the hydrophilic moieties in each said monomolecular layer are oriented toward the substrate by conducting a Langmuir-Blodgett layer-forming process.
Claim 14
Dependent Claim
66 words
An electrophotographic photosensitive member which comprises a substrate for electrophotography and at least one monomolecular layer on said substrate, said layer comprising a plurality of film-forming molecules, each molecule exhibiting photoconductivity and having a hydrophilic moiety and a hydrophopic moiety; wherein the layer is formed such that the hydrophilic moiety of each molecule is uniformly aligned and the hydrophobic moiety of each molecule is uniformly aligned.
Claim 15
Dependent Claim
66 words
An electrophotographic photosensitive member which comprises a substrate for electrophotography and at least one monomolecular layer on said substrate, said layer comprising a plurality of film-forming molecules, each molecule exhibiting photoconductivity and having a hydrophilic moiety and a hydrophopic moiety; wherein the layer is formed such that the hydrophilic moiety of each molecule is uniformly aligned and the hydrophobic moiety of each molecule is uniformly aligned.
Claim 16
Dependent Claim
81 words
A photoconductive member which comprises (a) a substrate; (b) at least one monomolecular layer on said substrate, said layer comprising a plurality of film-forming molecules, each molecule exhibiting photoconductivity and having a hydrophilic moiety and a hydrophobic moiety; wherein the layer is formed such that the hydrophilic moiety of each molecule is uniformly aligned and the hydrophobic moiety of each molecule is uniformly aligned, and (c) at least one photoconductive material interposed between said plurality of film-forming molecules in said layer.
Claim 17
Dependent Claim
81 words
A photoconductive member which comprises (a) a substrate; (b) at least one monomolecular layer on said substrate, said layer comprising a plurality of film-forming molecules, each molecule exhibiting photoconductivity and having a hydrophilic moiety and a hydrophobic moiety; wherein the layer is formed such that the hydrophilic moiety of each molecule is uniformly aligned and the hydrophobic moiety of each molecule is uniformly aligned, and (c) at least one photoconductive material interposed between said plurality of film-forming molecules in said layer.
Claim 18
Dependent Claim
11 words
The member of claim 13 in which the substrate is electroconductive.
Claim 19
Dependent Claim
23 words
The member of claim 14 comprised of a plurality of said monomolecular layers wherein adjacent layers are formed from different film forming molecules.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-06-02 | 1989-12-02 | 1990-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-06-02 | 1993-12-02 | 1994-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-06-02 | 1997-12-02 | 1998-06-03 | $7700.00 | Window Closed / Lapsed |